Well, as OE has denied any will for doing MMO in past and I don't see drastic events changing those views...
I for one hope OE doesn't make MMO
Obsidian has about 140 developers. They work on 3 titles at time and this worker base is divided between these titles (with obviously swapping going on). As it is about half (if not more, I can't remember exactly) of OE's people work full time on Alpha Protocol as it is obviously their leading title at the moment. NWN2:SoZ is expansion pack and thus feature less developers working on it simply because there's less work to do. My guess would be about 20-30 people but that's just a guess. Rest are obviously working on Aliens RPG (though some might be already planning on MYSTARY project that follows SoZ)
Developing MMO's takes ****loads long time, a lot resources AND humongous load of people developing it.
Only way Obsidian could reach the capacity to properly develop MMO without compromising heavil when it comes to other titles was big growth out of nowhere, which goes against Feargus's will they stay a relatively small but more close knitted company compared to megadevelopers such as Blizzard.
If OE would now start MMO it would mean bad for rest of their projects because it takes so much developers and time and money. Even if they managed to ship the MMO ultimately and it wouldn't be catastrophe they'd still needs considerably sized team work on game non-stop, keeping the servers up, developing new content, squishing bugs and "fixing" and unmaking "fixes" in never ending journey for game balance.
--------------------
MMO's simply aren't worth the hassle. There's already great MMO's in the market. Good RPG's not so much. And due to my tastes I'd by far prefer OE working on fantastic single player games instead of sinking time, manpower and money into MMO that would propably be financial failure anyway (competition is HARD in that genre)
So no MMO's please